UKRAINE: Banks, airports, government offices, power grid

An employee sitting next to an out-of-order payment terminal at a branch of Ukraine's state-owned Oschadbank in Kiev.
REUTERS/Valentyn Ogirenko

Ukraine has been the hardest hit by the attack, which came one day before the country's Constitution Day. Companies and government officials reported major disruptions to the Ukrainian power grid, banks, government offices, and airports.

RUSSIA: Banks, oil company, steelmaker

Russia's state-run Rosneft energy company also reported falling victim to hacking, but it said oil production wasn't affected. The Russian steelmaker Evraz also said its information systems were under attack but that its output wasn't affected.

The central bank of Russia said "computer attacks" had infected some IT systems of Russian banks. Citing an employee of the lender's call center, Reuters reported that all Russian branches of the Home Credit consumer lender were closed because of an attack.

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FRANCE: Saint-Gobain

Thomson Reuters

Saint-Gobain, a French construction-materials company, said it was also the victim of an attack, and a spokesman told Reuters that it was isolating computer systems to protect data.

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UK: WPP

Martin Sorrell, the founder and CEO of WPP.
Thomson Reuters

Britain's WPP, the world's largest advertising company, was also affected, the BBC reported.

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NORWAY

Thomson Reuters

Reuters reported that Norway's national-security authority said a ransomware attack was taking place at one of the country's companies, but they didn't name it.

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GERMANY: Deutsche Post, Metro

The German postal and logistics company Deutsche Post and the wholesale retailer Metro both said their locations in Ukraine were part of the attack and that they were assessing the impact.

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Mondelez International

Thomson Reuters

The global food company Mondelez International said its employees were experiencing technical difficulties "in various geographies" but wasn't sure if it, too, was the victim of a cyberattack.

"The Mondelez International network is experiencing a global IT outage," the company said in a statement. "Our global special situations management team is in place, and they are working to resolve the situation as quickly as possible."

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DENMARK: Maersk

Reuters

The massive Danish shipping company A.P. Moller-Maersk, which is responsible for one out of seven containers shipped around the world, said its branches were affected.

"We can confirm that Maersk IT systems are down across multiple sites and business units due to a cyberattack. We continue to assess the situation," the company wrote on its website. "The safety of our employees, our operations, and customer's business is our top priority. We will update when we have more information."